e*thirteen Heim 2RS ChainguideViews:
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|Miscellaneous||Following in the footsteps of the Dual Ring Security and Heim guidetechnology, the Heim2 is the "liger" of the chain retention world. Itslike a cross between my two favorite multi ring retention systems. Bottom bracket mount Turbocharger bashguard, 36t 104 BCD Aircraft grade stainless steel hardware and mounting plate 2 sealed chrome steel ball bearings Tough, quiet polyurethane roller Approximate weight 194 grams Dual ring setup|